A Pacific storm is bringing areas of low elevation rain, moderate to heavy mountain snow, and high winds to the Northwest. Strong Santa Ana winds and very dry conditions are producing elevated to critical fire weather conditions in southern California. Isolated strong to severe thunderstorms are possible through early Wednesday morning across parts of northeast Texas into western Tennessee. Read More >
Overview
| On Wednesday, December 15, 2021, a potent weather system crossed the northern plains. In our area, this resulted in some very strong northwesterly winds behind the cold front. The strongest wind gust was 79 mph at Wasta. These damaging winds caused numerous high-profile vehicles to be blown over, including a house that was being moved. Bands of snow accompanied the wind, which caused blowing snow and reduced visibility at times. A more significant band over south central SD resulted in the issuance of our first and second ever Snow Squall Warnings, where the high winds combined with falling snow to produce hazardous conditions. This was part of the same weather system that produced severe thunderstorms and tornadoes across portions of Nebraska, Iowa, and Minnesota. |  Hazardous conditions that prompted our first Snow Squall Warnings. |
Photos & Video
House has been removed from the road and traffic has resumed on Highway 44 and 161st Street, east of Farmingdale. pic.twitter.com/X6WhQZSQL6
— Pennington County SO (@PennCoSheriff) December 15, 2021
Extreme winds are reeking havoc on western South Dakota. Numerous high profile vehicles are being blown over due to the winds. A No Travel Advisory is being issued for these vehicles until the winds subside. #keepSDsafe pic.twitter.com/5YTt8ZA3qB
— South Dakota Highway Patrol (@SDHighwayPatrol) December 15, 2021
Winds are so bad in Box Elder right now that siding is actually blowing off my neighbors house. No travel advisories are in effect along parts of I-90 for high-profile vehicles, and based on recent scanner traffic, several semis have been blown over in western SD. pic.twitter.com/HfFmSoy8Cr
— Darsha Nelson (@darsha_tv) December 15, 2021
This wind is no joke. The roads aren’t great in spots either. If you don’t have to be out, I wouldn’t.
— Jim Bussell (@jbuss79) December 15, 2021
This is 161st Ave. south of New Underwood. #sdwx pic.twitter.com/wq4MH1J7IY
Snow Squall
Our first and second ever Snow Squall Warnings were issued for the band of snow that developed across south central South Dakota in the afternoon, accompanied by very strong winds.
A snow squall warning is in effect until 5:00 PM CST for US-18, US-83 near Antelope; US-18 near Carter; US-18, US-83 near Mission and US-18 near Okreek. pic.twitter.com/wCwABrxtbn
— NWS Rapid City (@NWSRapidCity) December 15, 2021
A snow squall warning is in effect until 5:45 PM CST for US-18 near Carter and US-18, US-183 near Witten. pic.twitter.com/6VqrQ1JRy7
— NWS Rapid City (@NWSRapidCity) December 15, 2021
Wind Reports
...MAXIMUM OBSERVED WINDS (AT LEAST 50 MPH) SORTED BY MAGNITUDE...
LOCATION MAX WIND COMMENTS
MPH
3 NW WASTA SD 79 204 PM 12/15/2021
3 NNW SCENIC SD 78 106 PM 12/15/2021
5 WNW NEW UNDERWOOD SD 74 1249 PM 12/15/2021
RAPID CITY ARPT SD 74 1105 AM 12/15/2021
15 SSE MISSION SD 71 426 PM 12/15/2021
8 S WALL SD 67 120 PM 12/15/2021
8 SSW FOLSOM SD 66 1108 AM 12/15/2021
10 W EDGEMONT SD 65 126 PM 12/15/2021
1 WNW CAPUTA SD 65 1045 AM 12/15/2021
ELLSWORTH AFB SD 64 930 AM 12/15/2021
1 NE MIDLAND SD 64 1243 PM 12/15/2021
3 E PHILIP SD 63 129 PM 12/15/2021
1 WSW RED ELM SD 62 329 PM 12/15/2021
1 NE WINNER SD 62 340 PM 12/15/2021
11 SW PARMELEE SD 62 504 PM 12/15/2021
6 W PARMELEE SD 61 128 PM 12/15/2021
3 W UNION CENTER SD 61 257 PM 12/15/2021
4 SSE WITTEN SD 60 621 PM 12/15/2021
7 ESE ROSEBUD SD 60 505 PM 12/15/2021
7 NNE RALPH SD 60 219 PM 12/15/2021
9 ENE BELVIDERE SD 60 614 PM 12/15/2021
WEWELA SD 59 325 PM 12/15/2021
4 E CACTUS FLAT SD 59 1159 AM 12/15/2021
25 ESE WRIGHT WY 58 105 PM 12/15/2021
1 ENE MUD BUTTE SD 58 1237 PM 12/15/2021
2 E COTTONWOOD SD 58 1240 PM 12/15/2021
1 NNE FAITH SD 58 532 PM 12/15/2021
1 E DWTN RAPID CITY SD 58 317 PM 12/15/2021
WASTA SD 58 1055 AM 12/15/2021
7 E STURGIS SD 57 1220 PM 12/15/2021
7 E WANBLEE SD 56 521 PM 12/15/2021
1 N BUFFALO SD 56 133 PM 12/15/2021
UNION CENTER SD 56 230 PM 12/15/2021
12 WSW CASTLE ROCK SD 55 258 PM 12/15/2021
9 SW BATESLAND SD 55 406 PM 12/15/2021
13 SSW REVA SD 54 338 PM 12/15/2021
1 NE ECHETA WY 53 851 AM 12/15/2021
6 WNW NEWCASTLE WY 52 1035 AM 12/15/2021
14 NNW EDGEMONT SD 52 120 PM 12/15/2021
7 SSE MEADOW SD 52 403 PM 12/15/2021
8 N REDIG SD 52 948 AM 12/15/2021
6 W ROCHFORD SD 51 208 PM 12/15/2021
3 W LEMMON SD 51 448 PM 12/15/2021
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